diff --git a/dubbo-metadata/src/main/java/org/apache/dubbo/metadata/InMemoryLocalMetadataService.java b/dubbo-metadata/src/main/java/org/apache/dubbo/metadata/InMemoryLocalMetadataService.java
index d4cd227e465..a932f40f878 100644
--- a/dubbo-metadata/src/main/java/org/apache/dubbo/metadata/InMemoryLocalMetadataService.java
+++ b/dubbo-metadata/src/main/java/org/apache/dubbo/metadata/InMemoryLocalMetadataService.java
@@ -158,7 +158,7 @@ private static List<String> getServiceURLs(Map<String, List<URL>> exportedServic
                                                String protocol) {
         List<URL> serviceURLs = exportedServiceURLs.get(serviceKey);
 
-        if (serviceKey == null) {
+        if (serviceURLs == null) {
             return emptyList();
         }